Design of an integrated voltage regulator
Independent thesis Basic level (professional degree)Student thesisAlternative title
Design av en integrerad spänningsregulator (Swedish)
Many analog systems need a stable power supply voltage that does not vary with temperature and time in order to operate properly. In a battery operated system the battery voltage is not stable, e.g. it decreases with decreasing temperature and with ageing. In that case a voltage regulator must be used, that regulates the battery voltage and generates a stable supply voltage to power other circuitry.
In this thesis a voltage regulator to be used in a battery operated system has been designed which meets the given specification of stability and power capabilities. A voltage reference, which is a commonly used devise in analog circuits, was also designed. The role of a reference voltage in an electrical system is the same as for a tuning fork in a musical ensemble; to set a standard to which other voltages are compared.
A functionality to detect when the lifetime of the battery is about to run out was also developed.
Place, publisher, year, edition, pages
Institutionen för systemteknik , 2003.
Electronics, voltage regulator, voltage reference, bandgap reference, CMOS, portable
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-1711OAI: oai:DiVA.org:liu-1711DiVA: diva2:19036